Specifications

1.long life span
2.Safe to use
3.High recovery rate

Releasing through improved fishing spear upside down, Releasing Spear fishing is carried out from the cavity of the fish hole tools.

It can grab a free state fishing column can also be caught fishing sticking column, also upside down and release off the fish, according to the different operational requirements in combination with other tools, we lengthened Releasing Spear the length of the mandrel so that the impact of the fish is not falling.

Various sizes of slips fishing tube, tube upside down fishing, fishing pump cylinder, multi-purpose fishing can be used to salvage the casing tube

Outer diameter: 42,46,50,55,60,73,78,89

ZDM-type drill buckle down Spear

Type	Outside diametermm	Inside diametermm	Connector threadAPI	Salvage threadAPI		Applicable upside down drill	The maximum pulling loadkN
ZDM40	152	28	NC46LH	NC46	4-41/2" DrillDrillpipe 61/4-63/4" Drill collar		350
ZDM46	121	12	NC38LH	NC38	31/2" DrillDrillpipe 5" Drill CollarDrill collar		350
ZDM46S	121	12	NC38	NC38	1/2" DrillDrillpipe		350
ZDM62	159	28	NC50LH	NC50	41/2-5" DrillDrillpipe 7" Drill CollarDrill collar		500
ZDM62S	159	28	NC50	NC50	41/2-5" DrillDrillpipe 7" Drill CollarDrill collar		500
ZDM64	165	28	NC50LH	NC50	41/2-5" DrillDrillpipe 7" Drill CollarDrill collar		500
ZDM70	178	32	51/2FHLH	51/2FH	51/2" DrillDrillpipe		700
ZDM70S	178	32	51/2FH	51/2FH	51/2" DrillDrillpipe		700
ZDM80	203	32	NC50LH	65/8REG	8" Drill CollarDrill collar		800
ZDM90	229	32	NC50LH	75/8REG	9" Drill CollarDrill collar		800